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                            data-longname="module:ol/source/GeoTIFF~GeoTIFFSource" data-name="ol/source/geotiff">
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                                <span><a
                                        href="module-ol_source_GeoTIFF-GeoTIFFSource.html">ol​/source​/GeoTIFF</a></span>
                            </span>
                            <div class="member-list" data-type="methods">
                                <span class="subtitle">Methods</span>
                                <ul>
                                    <li data-name="changed"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#changed">changed</a>
                                    <li data-name="clear"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#clear">clear</a>
                                    <li data-name="dispatchevent"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#dispatchEvent">dispatchEvent</a>
                                    <li data-name="get"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#get">get</a>
                                    <li data-name="getattributions"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#getAttributions">getAttributions</a>
                                    <li data-name="getattributionscollapsible"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#getAttributionsCollapsible">getAttributionsCollapsible</a>
                                    <li data-name="getkeys"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#getKeys">getKeys</a>
                                    <li data-name="getprojection"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#getProjection">getProjection</a>
                                    <li data-name="getproperties"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#getProperties">getProperties</a>
                                    <li data-name="getrevision"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#getRevision">getRevision</a>
                                    <li data-name="getstate"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#getState">getState</a>
                                    <li data-name="gettilegrid"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#getTileGrid">getTileGrid</a>
                                    <li data-name="getview"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#getView">getView</a>
                                    <li data-name="on"><a href="module-ol_source_GeoTIFF-GeoTIFFSource.html#on">on</a>
                                    <li data-name="once"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#once">once</a>
                                    <li data-name="refresh"><a
                                            href="module-ol_source_GeoTIFF-GeoTIFFSource.html#refresh">refresh</a>
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                            <div class="member-list" data-type="fires">
                                <span class="subtitle">Fires</span>
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                                    <li data-name="change"><a
                                            href="module-ol_events_Event-BaseEvent.html#event:change">change</a>
                                    <li data-name="error"><a
                                            href="module-ol_events_Event-BaseEvent.html#event:error">error</a>
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                                            href="module-ol_Object.ObjectEvent.html#event:propertychange">propertychange</a>
                                    <li data-name="tileloadend"><a
                                            href="module-ol_source_Tile.TileSourceEvent.html#event:tileloadend">tileloadend</a>
                                    <li data-name="tileloaderror"><a
                                            href="module-ol_source_Tile.TileSourceEvent.html#event:tileloaderror">tileloaderror</a>
                                    <li data-name="tileloadstart"><a
                                            href="module-ol_source_Tile.TileSourceEvent.html#event:tileloadstart">tileloadstart</a>
                                </ul>
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                        <li class="loading">Loading …
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            <div class="main col-md-8 col-lg-9">
                <h1 class="page-title" data-filename="module-ol_source_GeoTIFF-GeoTIFFSource.html">Class: GeoTIFFSource
                </h1>
                <div id="latest-check" class="alert alert-warning alert-dismissible" role="alert" style="display:none">
                    <button id="latest-dismiss" type="button" class="btn-close" data-bs-dismiss="alert"
                        aria-label="Close"></button>
                    This documentation is for OpenLayers v<span id="package-version">8.2.0</span>. The <a
                        id="latest-link" href="#" class="alert-link">latest</a> is v<span id="latest-version"></span>.
                </div>




                <section class="content">

                    <header>
                        <h2 class="my-3">
                            <span class="ancestors"><a
                                    href="module-ol_source_GeoTIFF.html">ol/source/GeoTIFF</a>~</span>GeoTIFFSource
                        </h2>
                        <br>



                        <pre
                            class="prettyprint source"><code>import GeoTIFFSource from '<a href="module-ol_source_GeoTIFF.html">ol/source/GeoTIFF</a>.js';</code></pre>


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                            <div class="class-description col-lg-7 align-self-center ps-0">
                                <p>A source for working with GeoTIFF data.
                                    <strong>Note for users of the full build</strong>: The <code>GeoTIFF</code> source
                                    requires the
                                    <a href="https://github.com/geotiffjs/geotiff.js">geotiff.js</a> library to be
                                    loaded as well.
                                </p>
                            </div>

                        </div>
                    </header>

                    <article>
                        <div class="container-overview">



                            <dl>

                                <dt class="">

                                    <div class="nameContainer">
                                        <div class="anchor" id="GeoTIFFSource">
                                        </div>
                                        <h4 class="name">
                                            new GeoTIFFSource<span class="signature">(options)</span>



                                        </h4>

                                        <div class="tag-source">
                                            <a
                                                href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/GeoTIFF.js">source/GeoTIFF.js</a>,
                                            <a
                                                href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/GeoTIFF.js#L379">line
                                                379</a>
                                        </div>

                                    </div>


                                </dt>
                                <dd class="">













                                    <table class="params">
                                        <thead>
                                            <tr>

                                                <th>Name</th>


                                                <th>Type</th>

                                                <th class="last">Description</th>
                                            </tr>
                                        </thead>

                                        <tbody>


                                            <tr class="">

                                                <td class="name"><code>sources</code></td>



                                                <td class="type">


                                                    <span class="param-type">Array&lt;<a
                                                            href="module-ol_source_GeoTIFF.html#~SourceInfo">SourceInfo</a>></span>




                                                </td>



                                                <td class="description last">

                                                    <p>List of information about GeoTIFF sources.
                                                        Multiple sources can be combined when their resolution sets are
                                                        equal after applying a scale.
                                                        The list of sources defines a mapping between input bands as
                                                        they are read from each GeoTIFF and
                                                        the output bands that are provided by data tiles. To control
                                                        which bands to read from each GeoTIFF,
                                                        use the <a
                                                            href="module-ol_source_GeoTIFF.html#~SourceInfo"><code>bands</code></a>
                                                        property. If, for example, you specify two
                                                        sources, one with 3 bands and <a
                                                            href="module-ol_source_GeoTIFF.html#~SourceInfo"><code>nodata</code></a>
                                                        configured, and
                                                        another with 1 band, the resulting data tiles will have 5 bands:
                                                        3 from the first source, 1 alpha
                                                        band from the first source, and 1 band from the second source.
                                                    </p>
                                                </td>
                                            </tr>



                                            <tr class="">

                                                <td class="name"><code>sourceOptions</code></td>



                                                <td class="type">


                                                    <span class="param-type"><a
                                                            href="module-ol_source_GeoTIFF.html#~GeoTIFFSourceOptions">GeoTIFFSourceOptions</a></span>

                                                    | undefined


                                                </td>



                                                <td class="description last">

                                                    <p>Additional options to be passed to <a
                                                            href="https://geotiffjs.github.io/geotiff.js/module-geotiff.html">geotiff.js</a>'s
                                                        <code>fromUrl</code> or <code>fromUrls</code> methods.
                                                    </p>
                                                </td>
                                            </tr>



                                            <tr class="">

                                                <td class="name"><code>convertToRGB</code></td>



                                                <td class="type">


                                                    <span class="param-type">true</span>
                                                    |

                                                    <span class="param-type">false</span>
                                                    |

                                                    <span class="param-type">'auto'</span>



                                                    (defaults to false)


                                                </td>



                                                <td class="description last">

                                                    <p>By default, bands from the sources are read as-is. When
                                                        reading GeoTIFFs with the purpose of displaying them as RGB
                                                        images, setting this to <code>true</code> will
                                                        convert other color spaces (YCbCr, CMYK) to RGB. Setting the
                                                        option to <code>'auto'</code> will make it so CMYK, YCbCr,
                                                        CIELab, and ICCLab images will automatically be converted to
                                                        RGB.</p>
                                                </td>
                                            </tr>



                                            <tr class="">

                                                <td class="name"><code>normalize</code></td>



                                                <td class="type">


                                                    <span class="param-type">boolean</span>



                                                    (defaults to true)


                                                </td>



                                                <td class="description last">

                                                    <p>By default, the source data is normalized to values between
                                                        0 and 1 with scaling factors based on the raster statistics or
                                                        <code>min</code> and <code>max</code> properties of each source.
                                                        If instead you want to work with the raw values in a style
                                                        expression, set this to <code>false</code>. Setting this option
                                                        to <code>false</code> will make it so any <code>min</code> and
                                                        <code>max</code> properties on sources are ignored.
                                                    </p>
                                                </td>
                                            </tr>



                                            <tr class="">

                                                <td class="name"><code>opaque</code></td>



                                                <td class="type">


                                                    <span class="param-type">boolean</span>



                                                    (defaults to false)


                                                </td>



                                                <td class="description last">
                                                    <p>图层是否不透明。</p>
                                                </td>
                                            </tr>



                                            <tr class="">

                                                <td class="name"><code>projection</code></td>



                                                <td class="type">


                                                    <span class="param-type"><a
                                                            href="module-ol_proj.html#~ProjectionLike">ProjectionLike</a></span>

                                                    | undefined


                                                </td>



                                                <td class="description last">

                                                    <p>Source projection. If not provided, the GeoTIFF metadata
                                                        will be read for projection information.</p>
                                                </td>
                                            </tr>



                                            <tr class="">

                                                <td class="name"><code>transition</code></td>



                                                <td class="type">


                                                    <span class="param-type">number</span>



                                                    (defaults to 250)


                                                </td>



                                                <td class="description last">
                                                    <p>渲染时的透明度过渡持续时间。要禁用透明度过渡，请传递<code>transition: 0</code>。 </p>
                                                </td>
                                            </tr>



                                            <tr class="">

                                                <td class="name"><code>wrapX</code></td>



                                                <td class="type">


                                                    <span class="param-type">boolean</span>



                                                    (defaults to false)


                                                </td>



                                                <td class="description last">

                                                    <p>Render tiles beyond the tile grid extent.</p>
                                                </td>
                                            </tr>



                                            <tr class="">

                                                <td class="name"><code>interpolate</code></td>



                                                <td class="type">


                                                    <span class="param-type">boolean</span>



                                                    (defaults to true)


                                                </td>



                                                <td class="description last">

                                                    <p>Use interpolated values when resampling. By default,
                                                        the linear interpolation is used to resample the data. If false,
                                                        nearest neighbor is used.</p>
                                                </td>
                                            </tr>


                                        </tbody>
                                    </table>




                                    <dl class="details">





















                                    </dl>



                                    <h5>Fires:</h5>
                                    <ul>
                                        <li class="">
                                            <code><a href="module-ol_events_Event-BaseEvent.html#event:change">change</a></code>
                                            (<a href="module-ol_events_Event-BaseEvent.html">BaseEvent</a>)
                                            -通用更改事件。在修订计数器增加时触发。
                                        </li>

                                        <li class="">
                                            <code><a href="module-ol_events_Event-BaseEvent.html#event:error">error</a></code>
                                            (<a
                                                href="module-ol_events_Event-BaseEvent.html">BaseEvent</a>)-通用错误事件。在发生错误时触发。
                                        </li>

                                        <li class="">
                                            <code><a href="module-ol_Object.ObjectEvent.html#event:propertychange">propertychange</a></code>
                                            (<a href="module-ol_Object.ObjectEvent.html">ObjectEvent</a>) - 当属性发生更改时触发。
                                        </li>

                                        <li class="">
                                            <code><a href="module-ol_source_Tile.TileSourceEvent.html#event:tileloadend">tileloadend</a></code>
                                            (<a href="module-ol_source_Tile.TileSourceEvent.html">TileSourceEvent</a>) -
                                            当瓦片的数据加载完成或由于瓦片不再需要而中止加载时，触发此事件。
                                        </li>

                                        <li class="">
                                            <code><a href="module-ol_source_Tile.TileSourceEvent.html#event:tileloaderror">tileloaderror</a></code>
                                            (<a href="module-ol_source_Tile.TileSourceEvent.html">TileSourceEvent</a>) -
                                            如果瓦片加载导致错误，则触发此事件。请注意，这不是重新获取瓦片的正确位置。请参阅<a
                                                href="module-ol_ImageTile-ImageTile.html#load"><code>load</code></a>获取详细信息。
                                        </li>

                                        <li class="">
                                            <code><a href="module-ol_source_Tile.TileSourceEvent.html#event:tileloadstart">tileloadstart</a></code>
                                            (<a href="module-ol_source_Tile.TileSourceEvent.html">TileSourceEvent</a>) -
                                            当瓦片开始加载时触发。
                                        </li>
                                    </ul>











                                </dd>

                            </dl>

                        </div>




                        <h3 class="subsection-title">Extends</h3>

                        <ul>
                            <li><a href="module-ol_source_DataTile-DataTileSource.html">DataTileSource</a></li>
                        </ul>















                        <h3 class="subsection-title">Methods</h3>

                        <dl>


                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="changed">
                                    </div>
                                    <h4 class="name">
                                        changed<span class="signature">()</span>

                                        <span class="inherited"><a
                                                href="module-ol_Observable-Observable.html#changed">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js">Observable.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js#L68">line
                                            68</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">
                                <div class="description">
                                    <p>增加修订计数器并派发一个 'change' 事件。</p>
                                </div>











                                <dl class="details">





















                                </dl>













                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="clear">
                                    </div>
                                    <h4 class="name">
                                        clear<span class="signature">()</span>

                                        <span class="inherited"><a
                                                href="module-ol_source_Tile-TileSource.html#clear">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Tile.js">source/Tile.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Tile.js#L344">line
                                            344</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>从源中删除所有缓存的瓦片。下一个渲染周期将获取新的瓦片。</p>
                                </div>











                                <dl class="details">





















                                </dl>













                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="dispatchEvent">
                                    </div>
                                    <h4 class="name">
                                        dispatchEvent<span class="signature">(event)</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{boolean | undefined}</span>

                                        <span class="inherited"><a
                                                href="module-ol_events_Target-Target.html#dispatchEvent">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/events/Target.js">events/Target.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/events/Target.js#L85">line
                                            85</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">
                                <div class="description">
                                    <p>派发一个事件并调用所有监听此类型事件的监听器。事件参数可以是字符串或具有 <code>type</code>属性的对象。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>event</code></td>



                                            <td class="type">


                                                <span class="param-type"><a
                                                        href="module-ol_events_Event-BaseEvent.html">BaseEvent</a></span>
                                                |

                                                <span class="param-type">string</span>




                                            </td>



                                            <td class="description last">

                                                <p>Event object.</p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                如果任何人在事件对象上调用 preventDefault，或者如果任何监听器返回 false，则为<code>false</code>。
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="get">
                                    </div>
                                    <h4 class="name">
                                        get<span class="signature">(key)</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{*}</span>

                                        <span class="inherited"><a
                                                href="module-ol_Object-BaseObject.html#get">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js">Object.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js#L135">line
                                            135</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>获取一个值。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>key</code></td>



                                            <td class="type">


                                                <span class="param-type">string</span>




                                            </td>



                                            <td class="description last">
                                                <p>键名称。</p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                Value.
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="getAttributions">
                                    </div>
                                    <h4 class="name">
                                        getAttributions<span class="signature">()</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{<a
                                                href="module-ol_source_Source.html#~Attribution">Attribution</a>}</span>

                                        <span class="inherited"><a
                                                href="module-ol_source_Source-Source.html#getAttributions">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js">source/Source.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js#L132">line
                                            132</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">
                                <div class="description">
                                    <p>获取数据源的归属函数。</p>
                                </div>











                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                Attribution function.
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="getAttributionsCollapsible">
                                    </div>
                                    <h4 class="name">
                                        getAttributionsCollapsible<span class="signature">()</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{boolean}</span>

                                        <span class="inherited"><a
                                                href="module-ol_source_Source-Source.html#getAttributionsCollapsible">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js">source/Source.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js#L140">line
                                            140</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">














                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                归属信息是否可覆盖
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="getKeys">
                                    </div>
                                    <h4 class="name">
                                        getKeys<span class="signature">()</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{Array.&lt;string>}</span>

                                        <span class="inherited"><a
                                                href="module-ol_Object-BaseObject.html#getKeys">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js">Object.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js#L148">line
                                            148</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">



                                <div class="description">
                                    <p>获取对象属性名称的列表。</p>
                                </div>











                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                属性名称列表。
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="getProjection">
                                    </div>
                                    <h4 class="name">
                                        getProjection<span class="signature">()</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{<a
                                                href="module-ol_proj_Projection-Projection.html">Projection</a> |
                                            null}</span>

                                        <span class="inherited"><a
                                                href="module-ol_source_Source-Source.html#getProjection">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js">source/Source.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js#L149">line
                                            149</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>获取源的投影。</p>
                                </div>











                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                Projection.
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="getProperties">
                                    </div>
                                    <h4 class="name">
                                        getProperties<span class="signature">()</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{Object.&lt;string, *>}</span>

                                        <span class="inherited"><a
                                                href="module-ol_Object-BaseObject.html#getProperties">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js">Object.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js#L157">line
                                            157</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>获取包含所有属性名称和值的对象。</p>
                                </div>











                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                Object.
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="getRevision">
                                    </div>
                                    <h4 class="name">
                                        getRevision<span class="signature">()</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{number}</span>

                                        <span class="inherited"><a
                                                href="module-ol_Observable-Observable.html#getRevision">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js">Observable.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js#L79">line
                                            79</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>获取此对象的版本号。每次对象被修改时，其版本号将递增。</p>
                                </div>











                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                Revision.
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="getState">
                                    </div>
                                    <h4 class="name">
                                        getState<span class="signature">()</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{<a
                                                href="module-ol_source_Source.html#~State">State</a>}</span>

                                        <span class="inherited"><a
                                                href="module-ol_source_Source-Source.html#getState">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js">source/Source.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js#L173">line
                                            173</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>获取源的状态，参见可能的枚举 <a href="module-ol_source_Source.html#~State"><code>状态</code></a>。
                                    </p>
                                </div>











                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                State.
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="getTileGrid">
                                    </div>
                                    <h4 class="name">
                                        getTileGrid<span class="signature">()</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{<a
                                                href="module-ol_tilegrid_TileGrid-TileGrid.html">TileGrid</a> |
                                            null}</span>

                                        <span class="inherited"><a
                                                href="module-ol_source_Tile-TileSource.html#getTileGrid">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Tile.js">source/Tile.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Tile.js#L266">line
                                            266</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">
                                <div class="description">
                                    <p>返回瓦片源的瓦片网格。</p>
                                </div>











                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                Tile grid.
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer">
                                    <div class="anchor" id="getView">
                                    </div>
                                    <h4 class="name">
                                        getView<span class="signature">()</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{Promise&lt;<a
                                                href="module-ol_View.html#~ViewOptions">ViewOptions</a>>}</span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/GeoTIFF.js">source/GeoTIFF.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/GeoTIFF.js#L990">line
                                            990</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>Get a promise for view properties based on the source. Use the result of this
                                        function
                                        as the <code>view</code> option in a map constructor.</p>
                                    <pre class="prettyprint source"><code>const source = new GeoTIFF(options);

const map = new Map({
  target: 'map',
  layers: [
    new TileLayer({
      source: source,
    }),
  ],
  view: source.getView(),
});</code></pre>
                                </div>











                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                A promise for view-related properties.
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="on">
                                    </div>
                                    <h4 class="name">
                                        on<span class="signature">(type, listener)</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{<a
                                                href="module-ol_events.html#~EventsKey">EventsKey</a> | Array&lt;<a
                                                href="module-ol_events.html#~EventsKey">EventsKey</a>>}</span>

                                        <span class="inherited"><a
                                                href="module-ol_Observable-Observable.html#on">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js">Observable.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js#L152">line
                                            152</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>监听特定类型的事件。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>type</code></td>



                                            <td class="type">


                                                <span class="param-type">string</span>
                                                |

                                                <span class="param-type">Array.&lt;string></span>




                                            </td>



                                            <td class="description last">
                                                <p>事件类型或事件类型的数组。</p>
                                            </td>
                                        </tr>



                                        <tr class="">

                                            <td class="name"><code>listener</code></td>



                                            <td class="type">


                                                <span class="param-type">function</span>




                                            </td>



                                            <td class="description last">
                                                <p>侦听器函数。</p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                监听器的唯一键。如果将事件类型的数组作为第一个参数调用，返回将是键的数组。
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="once">
                                    </div>
                                    <h4 class="name">
                                        once<span class="signature">(type, listener)</span><span
                                            class="fa fa-arrow-circle-right"></span><span
                                            class="type-signature returnType">{<a
                                                href="module-ol_events.html#~EventsKey">EventsKey</a> | Array&lt;<a
                                                href="module-ol_events.html#~EventsKey">EventsKey</a>>}</span>

                                        <span class="inherited"><a
                                                href="module-ol_Observable-Observable.html#once">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js">Observable.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js#L164">line
                                            164</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>仅监听特定类型的事件一次。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>type</code></td>



                                            <td class="type">


                                                <span class="param-type">string</span>
                                                |

                                                <span class="param-type">Array.&lt;string></span>




                                            </td>



                                            <td class="description last">
                                                <p>事件类型或事件类型的数组。</p>
                                            </td>
                                        </tr>



                                        <tr class="">

                                            <td class="name"><code>listener</code></td>



                                            <td class="type">


                                                <span class="param-type">function</span>




                                            </td>



                                            <td class="description last">
                                                <p>侦听器函数。</p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>















                                <h5>Returns:</h5>
                                监听器的唯一键。如果将事件类型的数组作为第一个参数调用，返回将是键的数组。
                                <br />




                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="refresh">
                                    </div>
                                    <h4 class="name">
                                        refresh<span class="signature">()</span>

                                        <span class="inherited"><a
                                                href="module-ol_source_Source-Source.html#refresh">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js">source/Source.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js#L195">line
                                            195</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">
                                <div class="description">
                                    <p>刷新源。源将被清除，服务器上的数据将被重新加载。</p>
                                </div>











                                <dl class="details">





















                                </dl>













                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="set">
                                    </div>
                                    <h4 class="name">
                                        set<span class="signature">(key, value, <span
                                                class="optional">silent</span>)</span>

                                        <span class="inherited"><a
                                                href="module-ol_Object-BaseObject.html#set">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js">Object.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js#L215">line
                                            215</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>设置值。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>key</code></td>



                                            <td class="type">


                                                <span class="param-type">string</span>




                                            </td>



                                            <td class="description last">
                                                <p>键名称。</p>
                                            </td>
                                        </tr>



                                        <tr class="">

                                            <td class="name"><code>value</code></td>



                                            <td class="type">


                                                <span class="param-type">*</span>




                                            </td>



                                            <td class="description last">

                                                <p>Value.</p>
                                            </td>
                                        </tr>



                                        <tr class="">

                                            <td class="name"><code>silent</code></td>



                                            <td class="type">


                                                <span class="param-type">boolean</span>

                                                | undefined


                                            </td>



                                            <td class="description last">
                                                <p>是否在不触发事件的情况下进行更新。</p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>













                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="setAttributions">
                                    </div>
                                    <h4 class="name">
                                        setAttributions<span class="signature">(attributions)</span>

                                        <span class="inherited"><a
                                                href="module-ol_source_Source-Source.html#setAttributions">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js">source/Source.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/Source.js#L206">line
                                            206</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">
                                <div class="description">
                                    <p>设置源的归属信息。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>attributions</code></td>



                                            <td class="type">


                                                <span class="param-type"><a
                                                        href="module-ol_source_Source.html#~AttributionLike">AttributionLike</a></span>
                                                |

                                                <span class="param-type">undefined</span>




                                            </td>



                                            <td class="description last">
                                                <p>归属信息。可以作为<code>string</code>,
                                                    <code>Array&lt;string&gt;</code>, <a
                                                        href="module-ol_source_Source.html#~Attribution"><code>Attribution</code></a>,
                                                    or <code>undefined</code>传递。
                                                </p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>













                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="setProperties">
                                    </div>
                                    <h4 class="name">
                                        setProperties<span class="signature">(values, <span
                                                class="optional">silent</span>)</span>

                                        <span class="inherited"><a
                                                href="module-ol_Object-BaseObject.html#setProperties">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js">Object.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js#L235">line
                                            235</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>设置一个键值对的集合。请注意，这将更改任何现有属性并添加新属性（不会删除任何现有属性）。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>values</code></td>



                                            <td class="type">


                                                <span class="param-type">Object.&lt;string, *></span>




                                            </td>



                                            <td class="description last">

                                                <p>Values.</p>
                                            </td>
                                        </tr>



                                        <tr class="">

                                            <td class="name"><code>silent</code></td>



                                            <td class="type">


                                                <span class="param-type">boolean</span>

                                                | undefined


                                            </td>



                                            <td class="description last">
                                                <p>是否在不触发事件的情况下进行更新。</p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>













                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="setTileGridForProjection">
                                    </div>
                                    <h4 class="name">
                                        setTileGridForProjection<span class="signature">(projection, tilegrid)</span>

                                        <span class="inherited"><a
                                                href="module-ol_source_DataTile-DataTileSource.html#setTileGridForProjection">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/DataTile.js">source/DataTile.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/source/DataTile.js#L355">line
                                            355</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">
                                <div class="description">
                                    <p>在将瓦片重新投影到给定投影时，使用指定的瓦片网格而不是投影的默认瓦片网格。</p>
                                    <p>这在默认瓦片网格无法创建时（例如投影没有定义范围）或出于优化原因（自定义瓦片大小、分辨率等）时很有用。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>projection</code></td>



                                            <td class="type">


                                                <span class="param-type"><a
                                                        href="module-ol_proj.html#~ProjectionLike">ProjectionLike</a></span>




                                            </td>



                                            <td class="description last">

                                                <p>Projection.</p>
                                            </td>
                                        </tr>



                                        <tr class="">

                                            <td class="name"><code>tilegrid</code></td>



                                            <td class="type">


                                                <span class="param-type"><a
                                                        href="module-ol_tilegrid_TileGrid-TileGrid.html">TileGrid</a></span>




                                            </td>



                                            <td class="description last">

                                                <p>Tile grid to use for the projection.</p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>













                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="un">
                                    </div>
                                    <h4 class="name">
                                        un<span class="signature">(type, listener)</span>

                                        <span class="inherited"><a
                                                href="module-ol_Observable-Observable.html#un">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js">Observable.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Observable.js#L173">line
                                            173</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>取消监听特定类型的事件。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>type</code></td>



                                            <td class="type">


                                                <span class="param-type">string</span>
                                                |

                                                <span class="param-type">Array.&lt;string></span>




                                            </td>



                                            <td class="description last">
                                                <p>事件类型或事件类型的数组。</p>
                                            </td>
                                        </tr>



                                        <tr class="">

                                            <td class="name"><code>listener</code></td>



                                            <td class="type">


                                                <span class="param-type">function</span>




                                            </td>



                                            <td class="description last">
                                                <p>侦听器函数。</p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>













                            </dd>




                            <dt class="">

                                <div class="nameContainer inherited">
                                    <div class="anchor" id="unset">
                                    </div>
                                    <h4 class="name">
                                        unset<span class="signature">(key, <span class="optional">silent</span>)</span>

                                        <span class="inherited"><a
                                                href="module-ol_Object-BaseObject.html#unset">inherited</a></span>



                                    </h4>

                                    <div class="tag-source">
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js">Object.js</a>,
                                        <a
                                            href="https://github.com/openlayers/openlayers/blob/v8.2.0/src/ol/Object.js#L259">line
                                            259</a>
                                    </div>

                                </div>


                            </dt>
                            <dd class="">




                                <div class="description">
                                    <p>取消设置属性。</p>
                                </div>










                                <table class="params">
                                    <thead>
                                        <tr>

                                            <th>Name</th>


                                            <th>Type</th>

                                            <th class="last">Description</th>
                                        </tr>
                                    </thead>

                                    <tbody>


                                        <tr class="">

                                            <td class="name"><code>key</code></td>



                                            <td class="type">


                                                <span class="param-type">string</span>




                                            </td>



                                            <td class="description last">
                                                <p>键名称。</p>
                                            </td>
                                        </tr>



                                        <tr class="">

                                            <td class="name"><code>silent</code></td>



                                            <td class="type">


                                                <span class="param-type">boolean</span>

                                                | undefined


                                            </td>



                                            <td class="description last">
                                                <p>在不触发事件的情况下取消设置属性。</p>
                                            </td>
                                        </tr>


                                    </tbody>
                                </table>




                                <dl class="details">





















                                </dl>













                            </dd>

                        </dl>





                    </article>

                </section>




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